<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>P92 5.2.3 对象成员遍历</title>
</head>
<body>
    <script>
        var obj={name:'Tom',age:16};
        for(var k in obj){
            console.log(k+'-'+obj[k]);
        }
        var obj={name:'Tom',age:16};
        console.log('name' in obj);
        console.log('gendar' in obj);
    </script>
    
</body>
</html>